Method and equipment for determining stress and displacement of composite lining tunnel

The invention provides a method and equipment for determining stress and displacement of a composite lining tunnel. The area of the composite lining tunnel comprises surrounding rock, a primary support and a secondary lining. The contact surface of the surrounding rock and the primary support is a f...

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Bibliographische Detailangaben
Hauptverfasser: ZHU YONGQUAN, FAN JINLU, LIU SHUHONG, WEN LEI, DUAN SHIJIE
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention provides a method and equipment for determining stress and displacement of a composite lining tunnel. The area of the composite lining tunnel comprises surrounding rock, a primary support and a secondary lining. The contact surface of the surrounding rock and the primary support is a first contact surface; the contact surface of the primary support and the secondary lining is a second contact surface; the inner boundary of the second lining is a third contact surface; the method comprises the steps that tunnel section structure parameters, far-field stress parameters, material parameters of all areas of a tunnel and boundary conditions and contact conditions of all contact surfaces are obtained, and stress continuity conditions and displacement continuity conditions are determined according to the parameters; and determining a stress function of each area according to the stress continuity condition and the displacement continuity condition so as to analyze the stress and the displacement on eac